I couldn't pick a top 3 just now. I would expect Aberdeen to get better, Hibs and Hearts to hit a bump in the road and the huns seem to be hopeless away from home. As Mr. Humper has pointed out Killie have been the most consistent going back over a considerable period of time!
In the spirit of the thread however I'll have a go 1) Celtic 2) Hearts 3) Kilmarnock. 👀